Destructible link or automatic fire-extinguisher.



BEST AVAILABLE m??? J. D. FARR. DESTBU'bTIBLE LINK 0R AUTUMN-PIG FIRE EXTJNGUISHER. APPLICATION rum) JAN. 18. 1908.

sam zafi Patented Oct. 6, 1908.

UNITED STATES PATENT OFFICE.

JONATHAN n. FARR, or MONROE, GEORGIA.

DESTRUCTIIYBLEQ LINK on AUTOMATIC rmn-nx'rmevisrmn.

Specification of Letters Patent.

Patented-Oct e, 1903."

Original application filed October 26, 1907, Serial No. 399,380. Renewed September 4, 1908. Serial No. 451,739.

. Divided and this application filed January 18 1908. Serial No. 411.481. i

To all 'whom' it may concern:

Be it known that 1, Jon ATHAX Monroe, in the county of alton and State of.Georgia, have invented a new and'useful Destructible Link or Automatic Fire-Extinguisher, of which the following is a specification. d

This invention relates to automatic fire extinguishers. of that general class shown and described in my former application for Letters Patent filedon the26th dayof October, 1907 under Serial No. 399380, and of which the present application is a division.

The object of the invention is to provide a novel form of. link forconnecting the several sections of cables constituting the detector or restrainingmember, said link being formed of pivotally united sections held in assembled position by a fusible or combustible binding member so that in case of a fireor excessive rise in the temperature, saidcombustible member will be destroyed and permit the operation of the mechanism for step ping the machine and extinguishing the fire.

A further object of the invention is to form one of the pivoted sections of the link with a contracted throat for the reception of the free end of the mating section, said mating section being provided with a laterally extending bill to assist in preventing accidental displacement of the combustible or fusible member.

A still further object. of the invention is generally to 'in'iprovethis class of devices so as to increase their utility, durability and efliciency.

Further objects and advantages'will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims.

In the accompanying drawings forming a part of this specification: Figure 1 is an elevation partly in sect-ion illustrating the ap plication of the invention to acotton gin. Fig. 2 is a perspective view of one of'the links of the restrainingdevice detached.

Fig. 3 is a side elevation of the same showing the pivoted section of the link in open or inoperative position. v

Similar numerals of reference indicate corresponding parts in all of the figures of the drawings.

D. Farm, a citlzen of the United States, residing at be improved deviceforming the subject matter of the present invention is principally designed for use in Conn etion with cotton gins, linters, pickers andthe like and by way of illustration is shown in connection with a cotton gin of the ordinary construction in which 5 designates the gin, and 6 the trunk or conveyor leading toa fan'T.

The device consists of a flexible restraining member preferably in the form of'a wire cable. the latter being formed of a plurality of section'sS connected by coupling members 0" links. i i i The cable or restraining member 8 extends over suitable pulleys 9 and'has one' end thereof attached to the interior of the conveyer 6 above the gin and its opposite end extended through the gin with its terminal connected to the adjacent end of a lever 10.

The lever 10 is pivotally mounted on a suitable support 11 and is connected at its lower end with a cord or other flexible medium 12. which latter extends over a pulley 13 and .is provided with a suitable weight ll for maintaining the restraining device under tension.

formed of pivotally united sections-15 and 16, the member 15 being preferably formed of a single length of wire one end of which is bent to produce an eye 17 while the opposite end thereof is bent upon itself at 18 and thence extended laterally in spaced relation to the intermediate portion of the link to form a contracted throat 19. The mating section 16 of the link is also preferably formed of a single piece of wire one end of which is provided with a loop or eye 20 which engages the eye 17, while the opposite end thereof is provided with a straight arm portion 21 which enters the throat 19 when the pivoted sections are in closed or operative position, i i y That portion of the section 16 between the arm 21 and the loop 20 is inclined laterally to form a loop or enlargement 22 for engagement with the terminal ring 23 o'fthe adjacent cable section 8, there being a similar ring engaging the section 15 at the throat 19 whereby the link is connected in and normally forms a part of said restraining device.

The sections 8 are preferably coiled or twisted around the adj acent'rings 23 and 24, as indicated at 25, so as to form in effect a pivotal connection between the same and thus permit the cable to be readily passed over the several pulleys and positioned at different portions of the machine or other form a laterally extending lip or bill -27 which serves to prevent longitudinal move-' ment of the destructible member 26 in one direction, the inclined portion of the member 16 serving to limit the longitudinal movement of said member in the opposite direction thereby to prevent accidental displacement of the same.

It will thus be seen that in case of fire or excessive rise in the temperature the member 26 will be destroyed thereby causing the weight 1st to actuate the lever 10 to stop the operation of the machine and at the same time open the valve 28 to permit the flow of water through the perforated pipe 29, in the manner described in my former application above referred to.

While the restraining member and connecting link is principally designed for use in connection with cotton mills it is obvious that the same may' be used with equally good results in factories, machine shops, stores, private dwellings or wherever a device of this kind is found applicable or desirable.

'Having thus described the invention what is claimed is 1. In a device of the class described a restraining member including a link formed of pivotally united sections movable laterally to open position, one of said sections being provided with acontracted throat adapted to receive the free end of the mating section when said-sections are in closed position,

and a destructible member embracing both link sections at said throat.

2. Ina device of the class described, a re straining member formed of a plurality of sections, links connecting the several sections comprising the restraining member, said links being each formed of pivotally united members movable laterallyto open position, said link members being locked in closed position by a destructible member extending transversely across and embracing both link sections at the free ends thereof.

3. In a device of the class described, a

flexible restraining member, and a link (:on-

stitnting a part of the restraining member and formed of pivotally united members one of which is proyided. with a laterally extending bill, and a destructible member extending transversely across and surrounding both of said link sections at said bill.

4. In a device of the class described, a

restraining member, a link forming a part .bent upon itself to forma contracted throat,

the other link section being inclined laterally at the pivoted end thereof and having its opposite end seated in the throat and terminating in a laterally extending bill, and a destructible member surrounding the link sections at said bill for normally locking the sections in closed position.

6. In a device of the class described, a restraining memlie'r including a link comprising pivotally united sections each formed of a single piece'of wire, the wire forming one of the link sections being bent upon itself to form a contracted throat and the wire forming the mating link section having one end thereof bent to produce an eye for pivotal connection with the adjacent section and its opposite end extending within the throat and bent laterally to form a bill, and a destructible member surrounding the link sections at said bill.

7. Ina device of the class described, a restraining member formed of a plurality of sections, rings secured to the opposite ends of said sectlons, and links connecting the rings and each formed of pivotally united members one of which is extended through the adjacent ring and thence bent to form a contracted throat the other link member being provided with a lateral loop for engagement with the contiguous ring-and thence extended between the walls of the throat and bent laterally to produce a terminal. bill, and a combustible or fusible member surrounding the link members at said bill.

In testimony that I caim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

JONATHAN I). FARR.

Witnesses:

R. H. LOOKHART, R. A. HARRISON. 

